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KOS to YSJ: distance & flight time
Sihanoukville (Sihanoukville International Airport) → St. John (Saint John Airport)
8,520 mi
13,712 km · 7,404 nm
17h 10m
estimated nonstop flight time
-10h
time difference · heading north
See live KOS→YSJ fares Phone-only fares on this route — call free
Flight time details
8,520 miles nonstop takes roughly 17h 10m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- YSJ — Saint John Airport · St. John, Canada
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near KOS
- PQC · Phu Quoc International Airport37 mi away
- PNH · Phnom Penh International Airport106 mi away
- VKG · Rach Gia Airport110 mi away
- KZC · Kampong Chhnang Airport132 mi away
Near YSJ
- YFC · Fredericton Airport49 mi away
- YZX · CFB Greenwood53 mi away
- YDG · Digby / Annapolis Regional Airport53 mi away
- YQM · Greater Moncton International Airport80 mi away
Frequently asked questions
How far is KOS from YSJ?
The flight distance from Sihanoukville (KOS) to St. John (YSJ) is 8,520 miles (13,712 km, 7,404 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to YSJ?
A nonstop flight takes about 17h 10m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Sihanoukville and St. John?
St. John is 10 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to YSJ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–YSJ that never appear on search engines, with no booking fees.